From 58ef2fa9c88f4bac0589cd85e580b92ec069e397 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Sat, 15 Feb 2020 00:24:29 +0100
Subject: [PATCH] compensate for known terminal aspect ratio

Instead of assuming oldschool/high fonts, calculate from window resolution
and characters, supported by many terminals (at least urxvt, xterm, mlterm,
stterm, putty).

Depend on Term::ReadKey instead of calling a linux-specific ioctl, since
it's commonly installed already and obviously better for compatibility.
---
 termimg | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/termimg b/termimg
index 40bf6ab..6876158 100755
--- a/termimg
+++ b/termimg
@@ -54,10 +54,16 @@ eval {
 	push @info, "# $md5 ($filesize)";
 } or warn $@;
 
+my $aspect = eval {
+	require Term::ReadKey;
+	my ($w, $h, $x, $y) = Term::ReadKey::GetTerminalSize();
+	return $x/$w / $y*$h;
+};
+
 open my $pgm, '-|', convert => (
 	$file =>
 	-delete => '1--1',
-	'+distort' => SRT => '0,0 1,.56 0',
+	$aspect ? ('+distort' => SRT => "0,0 1,$aspect 0") : (),
 	-thumbnail => $size || '40x12',
 	-colorspace => 'gray',
 	'-normalize',
-- 
2.30.0